Sworkit uses a scientifically proven technique of combining interval training with randomized exercises to maximize the effectiveness of every workout. Best of all, these randomized circuit training workouts require no weights or extra equipment. You can choose your workout length and target different areas to create the perfect workout anywhere, anytime. The randomized aspect helps your body workout harder by preventing it from getting used to a specific routine, helping you stay motivated to exercise and stay fit. The circuit training aspect provides additional cardiovascular fitness with each exercise being presented in 30 second intervals with a built in rest periods.